Circulant matrices have been around for a long time and have been extensively used in many scientific areas. This book studies the properties of the eigenvalues for various types of circulant matrices, such as the usual circulant, the reverse circulant, and the k-circulant when the dimension of the matrices grow and the entries are random. In particular, the behavior of the spectral distribution, of the spectral radius and of the appropriate point processes are developed systematically using the method of moments and the various powerful normal approximation results. This behavior varies according as the entries are independent, are from a linear process, and are light- or heavy-tailed. Arup Bose obtained his B.Stat., M.Stat. and Ph.D. degrees from the Indian Statistical Institute. He has been on its faculty at the Theoretical Statistics and Mathematics Unit, Kolkata, India since 1991. He is a Fellow of the Institute of Mathematical Statistics, and of all three national science academies of India. He is a recipient of the S.S. Bhatnagar Prize and the C.R. Rao Award. He is the author of three books: Patterned Random Matrices, Large Covariance and Autocovariance Matrices (with Monika Bhattacharjee) and U-Statistics, M_m-Estimators and Resampling (with Snigdhansu Chatterjee). Koushik Saha obtained a B.Sc. in Mathematics from Ramakrishna Mission Vidyamandiara, Belur and an M.Sc. in Mathematics from Indian Institute of Technology Bombay. He obtained his Ph.D. degree from the Indian Statistical Institute under the supervision of Arup Bose. His thesis on circulant matrices received high praise from the reviewers. He has been on the faculty of the Department of Mathematics, Indian Institute of Technology Bombay since 2014.

Circulant matrices have been around for a long time and have been extensively used in many scientific areas. This book studies the properties of the eigenvalues for various types of circulant matrices, such as the usual circulant, the reverse circulant, and the k-circulant when the dimension of the matrices grow and the entries are random. In particular, the behavior of the spectral distribution, of the spectral radius and of the appropriate point processes are developed systematically using the method of moments and the various powerful normal approximation results. This behavior varies according as the entries are independent, are from a linear process, and are light- or heavy-tailed. Arup Bose obtained his B.Stat., M.Stat. and Ph.D. degrees from the Indian Statistical Institute. He has been on its faculty at the Theoretical Statistics and Mathematics Unit, Kolkata, India since 1991. He is a Fellow of the Institute of Mathematical Statistics, and of all three national science academies of India. He is a recipient of the S.S. Bhatnagar Prize and the C.R. Rao Award. He is the author of three books: Patterned Random Matrices, Large Covariance and Autocovariance Matrices (with Monika Bhattacharjee) and U-Statistics, M_m-Estimators and Resampling (with Snigdhansu Chatterjee). Koushik Saha obtained a B.Sc. in Mathematics from Ramakrishna Mission Vidyamandiara, Belur and an M.Sc. in Mathematics from Indian Institute of Technology Bombay. He obtained his Ph.D. degree from the Indian Statistical Institute under the supervision of Arup Bose. His thesis on circulant matrices received high praise from the reviewers. He has been on the faculty of the Department of Mathematics, Indian Institute of Technology Bombay since 2014.

a)Introduction of problem: The significant prognostic factors of Wilms' tumor are- stage, age, anaplasia, size, capsular invasion, etc. The role of DNA ploidy, proliferation markers is still not proven. b)Abstract: Aims: This study was done to analyze the histopathological spectrum of pediatric renal tumors and to study the expression of Ki67, p53 and p27 in WT and correlate their expression in epithelial and blastema components in different stages of WT. Results: It was observed that the PI of Ki67 of epithelial component was significantly higher than that of blastema component in all stages. Proliferation index in stage II was significantly higher than stage I. Statistical analysis could not be done in stage III and stage IV due to small number of cases. p53 and p27 expression did not show any significant difference in epithelial and blastema components and in between stages. Conclusion: We found the differences of PI in different tissue components of WT. The epithelial component having higher PI of Ki67, which correlated well with the stage of advancement of the disease. c) Target group: The book was written for the pathologists, pediatric surgeons and urologists.

University libraries have to deal with the needs of researchers in various disciplines preferably in science disciplines. The requirements of research and researcher are ever changing and dynamic in nature. To meet the ever growing needs of the science scholars it is the responsibility of the university libraries to provide right information to the right researchers in right form and at the right time. Due to the advancement of the technology and with the big hands of INFLIBNET, UGC Infonet E-consortium is come into being to satisfy the needs of the scholars quickly and rightly. Gradually, the e-journals come into being along with the print journals. But there is a big question how far libraries are able to meet the requirements of the science scholars even in the 21st century? How science scholars are friendly with the e-journals concept? Etc. keeping these views in mind the present study is an attempt to know the attitudes of the science research scholars towards E-Journals in the Visva-Bharati, a Central University. Considering the present library services regarding the usage of E-Journal, the study has furnished some suggestions for the betterment..